The amount of substance that contains as many particles or entities as there are atoms in exactly 12 g (or 0.012 kg) of the 12 C isotope___

Assertion: One mole of a substance always contain the same number of entities, no metter what the substance may be. Reason : One mole is the amount of a substance that contains as many particles or entities as there are atoms in exactly 12 g of the ""^12C isotope.

A mole is defined as the amount of substance that contains as many specified elementary particles as the number of atoms in.......g of carbon 12 isotope.

Give a suitable word or phrase for the following: (i) (ii) (iii) The amount of substance which contains - the same number of units as the number of atoms in 12g. of carbon-12 [ 6C^(12) ]

Calculate number of atoms in 1.2 g of carbon.

The amount of benzene that wil separate out (in grams) if a solution containing 7.32 g of triphenylmethane in 1000g of benzene is cooled to a temperature which is 0.2^(@)C below the freezing point of benzene? (K_(f)=5.12K-Kg//"mol")

The value of 3/(25) is (a)1.2 (b) 0.12 (c) 0.012 (d) None of these

What will be the mass of one .^(12)C atom in g ?

What will be the mass of one .^(12)C atom in g ?

What will be the mass of one .^(12)C atom in g ?

A substance is in the solid from at 0^(@)C . The amount of heat added to this substance and its temperature is plotted in the graph . The specific heat capacity of the solid substance is 0.5 "cal//g"^(@)C . The mass of the substance is -